Question
PSLE
Pierre and Andy ran in a race around a 800 m track. Pierre ran at a speed of 195 m/min and Andy at a speed that was 20 m/min slower than Pierre throughout the race. How many complete rounds would Pierre have finished when he ran a distance of 400 m more than Andy?
3 m

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PSLE
Pierre and Andy ran in a race around a 800 m track. Pierre ran at a speed of 195 m/min and Andy at a speed that was 20 m/min slower than Pierre throughout the race. How many complete rounds would Pierre have finished when he ran a distance of 400 m more than Andy?